CN204013491U - Integrated form vibration emitter - Google Patents
Integrated form vibration emitter Download PDFInfo
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- CN204013491U CN204013491U CN201420466482.5U CN201420466482U CN204013491U CN 204013491 U CN204013491 U CN 204013491U CN 201420466482 U CN201420466482 U CN 201420466482U CN 204013491 U CN204013491 U CN 204013491U
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Abstract
Integrated form vibration emitter, belong to communication technique field, the new measure proposing in order to reduce product cost, to promote the ability that cracks of the integrated circuit of tri-state coding class, by operation amplifier oscillator, coding integrated circuit, radio circuit, indicating circuit, control switch forms jointly, there is indicating circuit, just can learn that whether reflector is charged, when control switch is connected, operation amplifier oscillator vibrates rapidly, because the change code end of coding integrated circuit has connected the output of operation amplifier oscillator, therefore becoming code end is ceaselessly changing, possessed conversion, after the utility model is implemented, there is the very high anti-ability of cracking, if with coordinating of rolling code circuit, level of confidentiality is higher, because rudimentary coding integrated circuit has cheap advantage, so its product has very strong competitiveness.
Description
Technical field
Belong to communication technique field.
Background technology
Telecontrol engineering is more and more general, however, but in general family, anti-theft safety door most or mechanical key is unblanked, although key is also dangerous, often has a key can open two to three reports of lock, but still with remote control, do not replace, this just illustrates 2 points: the one, and remote control cost is too high, can not spread among general family, the 2nd, the accuracy of remote control is not as mechanical key.This is because the coding of coding integrated circuit is simple, easily by people, cracked, thereby privacy degrees is inadequate, if need not encode integrated circuit, be exactly existing rolling code, but cost is too high again, so the product of making has very large price competitiveness, market prospects are wide, but shortcoming due to coding the simple close utmost point not high, so can not be widely used in the product of having relatively high expectations.
If imagination can be produced with cheap coding integrated circuit the coding circuit of the highly dense utmost point, obviously to improving the competitiveness of product, have a very big significance.
Summary of the invention
Main purpose of the present utility model is to propose a kind of new measure, and it is to take the 2262 coding integrated circuits that are representative for assisting, and operation amplifier integrated circuit vibrates, reduce product cost, and with other higher level code integrated circuit combination after, level of confidentiality is higher, it is anti-that to crack ability stronger.
The measure that this patent proposes is:
1, integrated form vibration emitter consists of jointly operation amplifier oscillator, coding integrated circuit, radio circuit, indicating circuit, control switch.
Wherein: operation amplifier oscillator: the negative phase end of operational amplifier connects the tie point of feedback resistance and integrating capacitor, the output of the other end concatenation operation amplifier of feedback resistance, integrating capacitor other end ground connection, the positive terminal of operational amplifier connects lower inclined to one side resistance to ground, the output of upper inclined to one side resistance one end concatenation operation amplifier, the positive terminal of other end concatenation operation amplifier, the anodal power supply that connects of differential capacitance, negative pole connects diac to the positive terminal of operational amplifier, discharge diode one end ground connection, the other end connects the negative pole of differential capacitance, the output of operational amplifier is the output of operation amplifier oscillator.
The output of coding integrated circuit connects one end of modulated resistance, and the other end of modulated resistance connects the emitter of transmitting tube.
The output that oscillator is amplified in the change code end concatenation operation of coding integrated circuit, the fixed code earth connection of coding integrated circuit.
Radio circuit is comprised of copper foil antenna and transmitting tube, frequency modulation inductance, tunable capacitor.
The power end of the frequency modulation inductance one end in frequency-modulation element and coding integrated circuit links together to connect and after control switch, connects power supply, one end of the other end connection copper foil antenna of frequency modulation inductance, transmitting tube collector electrode is connected to one end of copper foil antenna, transmitting tube base resistance is connected between the base stage and collector electrode of transmitting tube, between the base stage of transmitting tube and emitter, connect a resistance, the emitter of transmitting tube has also connected the other end of modulated resistance, one end of another termination tunable capacitor of copper antenna, the other end of tunable capacitor connects the collector electrode of transmitting tube, tunable capacitor parallel connection a shunt capacitance, the copper foil antenna other end has also connect an electric capacity to the emitter of transmitting tube.
One end of control switch connects battery supply, and the other end of control switch is the power supply of operation amplifier oscillator, coding integrated circuit, radio circuit, indicating circuit.
Indicating circuit is comprised of protective resistance and indicator light.
One end of protective resistance is connected to the other end of control switch, ground connection after the other end connection indicator light of protective resistance.
2, the second connection of the fixed code of coding integrated circuit is to connect power supply.
3, the third connection of coding integrated circuit fixed code is two or three code bit earth connections, and all the other connect power supply.
4, differential capacitance is electrodeless electric capacity.
This measure is further explained as follows:
When transmitting switches on power,, after control switch closure, operation amplifier oscillator starts rapidly, because the change code of coding integrated circuit has terminated in the output of operation amplifier oscillator, therefore, can send the code of conversion.
1, described in measure 1, if person has aimed at this line design a kind of a kind of modified model oscillating circuit being formed by integrated circuit, the principle of its vibration is: the principle of generation is: when the output of operational amplifier (3-3 in Fig. 2) is a high position, by output, with the feedback resistance being connected with inverting input (3-2 in Fig. 2), integrating capacitor (3-1 in Fig. 2) is charged, when the voltage of integrating capacitor exceeds after in-phase end voltage, operational amplifier output terminal changes, from a high position, become low level, at this moment in-phase end voltage step-down, become the front half period of vibration, at this moment integrating capacitor is passed through conductive discharge, when end of oppisite phase voltage low when the in-phase end voltage, operational amplifier output becomes a high position from low level again, become the later half cycle of vibration, produce second round like this, three cycles and without one number time, produce vibration.
In circuit, increased differential capacitance (3-7 in Fig. 2), differential capacitance design becomes electrodeless, has reduced the electric leakage of electric capacity, is more conducive to starting of oscillation, and operational amplifier does not have specific (special) requirements, selects Unit 1/4 of operational amplifier 324 all can.
2, in measure 1, operation amplifier oscillator has formed such annexation with coding integrated circuit, the coded portion of coding integrated circuit has been divided into two parts, a part is the fixed code having connected in advance, this fixed code can ground connection, also can connect power supply, flexible and changeable, another part is the variation code being connected with operation amplifier oscillator.When manual operation is launched, the vibration of operation amplifier oscillator, the change code end of coding integrated circuit has just become 0 and 1 two states, and the integrated circuit of at this moment encoding just can only a kind of solid size transmitting become two kinds of outputs of dicode from former.By the excitation to modulating tube, reached the object of dicode modulate emission.
3, because the frequency agile of operation amplifier oscillator is adjustable, completely can the such ideal situation of furnishing when producing, at operation push-button in the needed time, (as 0.5 second), has completed the necessary condition of twice variation code.Because only need not two with a coding integrated circuit, coding integrated circuit chip select end ground connection, circuit is reliable.
4, division operation amplifies oscillator and fgs encoder peripheral element and element in addition, has formed radio frequency and has produced and launch necessary part, and transmitting tube wherein and modulating tube share, simple and convenient.
5,, in radio frequency, this patent one is to adopt induction-regulated circuit, reduces volume, the 2nd, and the generation of radio frequency adopts a pipe with modulation simultaneously, has increased like this reliability of circuit.Because triode belongs to consumable accessory, above 2 points, have reduced whole space face simultaneously and have occupied situation.
6, in radio frequency, this patent adopts induction-regulated circuit, and its benefit is that induction regulation coil is little, and than fixedly crystal oscillator volume is little, its antenna adopts copper platinum in printed panel to apply into certain switch, and whole volume is little, can be contained in less launch-box.
Enforcement is rear or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
1, realized the change code form of the coding integrated circuit of low price, promoted the character of coding integrated circuit, what send is no longer the solid size being easily cracked, but has had conversion, has the very high anti-ability of cracking.
If 2 with the coordinating of rolling code circuit, it decodes difficulty is superpower, because rolling code is the coding of a class character, and in this measure, dicode transmitting is the coding of a class character, two kinds of coded combinations of different nature, crack difficulty than a kind of coding of character larger.
3, reliably, its reason is while launching the change code of dicode generation to the transmitting of the dicode of this measure, can be disorderly, only can repeat, and two kinds of change yard states are obvious, offer a clear explanation, and the receiving unit designing with inventor extremely mates.
4, circuit is reliable, and the one, circuit is simplified, and the 2nd, easy failed part triode only has one, and the 3rd, after induction regulation coil envelope is filled with, inductance value is difficult for changing.Four, be that antenna is applied into by printed panel, do not produce variation in shape, do not affect radio frequency, adopted the elite of universal design.
5, operation amplifier oscillating circuit circuit is simple, easy oscillates, and vibrational stabilization, is easy to coordinate with whole circuit.
6, produce easily, the one, equipment that need not be valuable and instrument, the 2nd, technology is simple, the 3rd, circuit simplify and element requirement used low, so can produce very high first-pass yield, very applicable minuscule-type-enterprise produces.
Accompanying drawing explanation
Fig. 1 is integrated form vibration emitter schematic diagram.
Wherein: 1, operation amplifier oscillator; 2, the output of the operation amplifier oscillator change code end of integrated circuit of encoding; 3, coding integrated circuit; 4, the fixed code of coding integrated circuit; 5, coding integrated circuit signal output; 6, modulated resistance; 7, radio circuit.
Fig. 2 is operation amplifier oscillator figure.
In figure: 2, the output of the operation amplifier oscillator change code end of integrated circuit of encoding; 3-1, integrating capacitor; 3-2, feedback resistance; 3-3, operational amplifier; 3-5, upper inclined to one side resistance; 3-6, lower inclined to one side resistance; 3-7, differential capacitance; 3-8, discharge diode; 3-9, diac.
Fig. 3 is radio circuit figure.
In figure: 3, coding integrated circuit; 5, coding integrated circuit signal output; 6, modulated resistance; 30, the integrated circuit ground end of encoding; 31, coding ic power end; 32, transmitting tube; 33, transmitting tube base resistance; 34, circuit controling switch; 35, frequency modulation inductance; 36, copper foil antenna; 37, the electric capacity that the copper foil antenna other end and transmitting tube emitter connect; 38, the shunt capacitance in parallel with tunable capacitor; 39, tunable capacitor.
embodiment
Fig. 1, Fig. 2, Fig. 3 have described a kind of mode of concrete enforcement jointly.
Operation amplifier oscillator is pressed the welding shown in Fig. 2, and radio circuit welds as Fig. 3.
1, select element: the integrated circuit of wherein encoding selects 2262, and transmitting tube is selected high-frequency tube, also can select 8050 triodes.
2, modulation:
Adjust operation amplifier oscillator relevant parameters:
Adjust duration of oscillation: adjust duration of oscillation: with oscillographic red pen, be connected on the output of oscillating circuit black meter pen ground connection.
Adjust feedback resistance 3-2, with the size of integrating capacitor 3-1, observe vibration situation, make it frequency and meet the requirements.If the too fast increasing electric capacity of frequency or resistance value, otherwise reduce its value.
Adjust radio frequency and modulation operating state.
If make receiver with oscilloscope, be not directly connected with reflector, at this moment, when pressing reflector, oscilloscope can respond, and represents that radio frequency is working properly with modulation.Otherwise should adjust the sense value of induction regulation coil, or the resistance value of coding ic output, until sensitivity meets the requirements.
With common solid size receiver, make receiver, now receiving unit can not be received signal.If with the specific dicode signal receiver of inventor's design, dicode receiver can be received signal.
Claims (4)
1. integrated form vibration emitter, is characterized in that: operation amplifier oscillator, coding integrated circuit, radio circuit, indicating circuit, control switch, jointly consist of:
Wherein: operation amplifier oscillator: the negative phase end of operational amplifier connects the tie point of feedback resistance and integrating capacitor, the output of the other end concatenation operation amplifier of feedback resistance, integrating capacitor other end ground connection, the positive terminal of operational amplifier connects lower inclined to one side resistance to ground, the output of upper inclined to one side resistance one end concatenation operation amplifier, the positive terminal of other end concatenation operation amplifier, the anodal power supply that connects of differential capacitance, negative pole connects diac to the positive terminal of operational amplifier, discharge diode one end ground connection, the other end connects the negative pole of differential capacitance, the output of operational amplifier is the output of operation amplifier oscillator,
The output of coding integrated circuit connects one end of modulated resistance, and the other end of modulated resistance connects the emitter of transmitting tube;
The output that oscillator is amplified in the change code end concatenation operation of coding integrated circuit, the fixed code earth connection of coding integrated circuit;
Radio circuit is comprised of copper foil antenna and transmitting tube, frequency modulation inductance, tunable capacitor:
The power end of the frequency modulation inductance one end in frequency-modulation element and coding integrated circuit links together to connect and after control switch, connects power supply, one end of the other end connection copper foil antenna of frequency modulation inductance, transmitting tube collector electrode is connected to one end of copper foil antenna, transmitting tube base resistance is connected between the base stage and collector electrode of transmitting tube, between the base stage of transmitting tube and emitter, connect a resistance, the emitter of transmitting tube has also connected the other end of modulated resistance, one end of another termination tunable capacitor of copper antenna, the other end of tunable capacitor connects the collector electrode of transmitting tube, tunable capacitor parallel connection a shunt capacitance, the copper foil antenna other end has also connect an electric capacity to the emitter of transmitting tube,
One end of control switch connects battery supply, and the other end of control switch is the power supply of operation amplifier oscillator, coding integrated circuit, radio circuit, indicating circuit;
Indicating circuit is comprised of protective resistance and indicator light:
One end of protective resistance is connected to the other end of control switch, ground connection after the other end connection indicator light of protective resistance.
2. integrated form vibration emitter according to claim 1, is characterized in that: the second connection of the fixed code of coding integrated circuit is to connect power supply.
3. integrated form vibration emitter according to claim 1, is characterized in that: the third connection of coding integrated circuit fixed code is two or three code bit earth connections, and all the other connect power supply.
4. integrated form vibration emitter according to claim 1, is characterized in that: differential capacitance is electrodeless electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466482.5U CN204013491U (en) | 2014-08-19 | 2014-08-19 | Integrated form vibration emitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466482.5U CN204013491U (en) | 2014-08-19 | 2014-08-19 | Integrated form vibration emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204013491U true CN204013491U (en) | 2014-12-10 |
Family
ID=52053425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420466482.5U Expired - Fee Related CN204013491U (en) | 2014-08-19 | 2014-08-19 | Integrated form vibration emitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204013491U (en) |
-
2014
- 2014-08-19 CN CN201420466482.5U patent/CN204013491U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150819 |
|
| EXPY | Termination of patent right or utility model |